/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.mfi.controllers;

import com.mfi.models.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.simple.JSONObject;

/**
 *
 * @author User
 */
public class OrderAddServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        JSONObject obj = new JSONObject();
        try {

            if (request.getSession().getAttribute("cart") == null) {
                request.getSession().setAttribute("cart", new ArrayList<CartItem>());
            }

            DBConnection connection = new DBConnection();

            String id = request.getParameter("id");
            int sizeID = Integer.parseInt(request.getParameter("size"));
            int qty = Integer.parseInt(request.getParameter("qty"));
            double price = connection.getPizzaPrice(Integer.parseInt(id), sizeID);
            String size = "";
            ArrayList<Size> sizes = connection.getProductSizes();
            for (Size s : sizes) {
                if (s.getId() == sizeID) {
                    size = s.getName() + "\" ";
                }
            }

            Product product = connection.selectProduct(id);
            CartItem newItem = null;

            ArrayList<CartItem> cartItems = (ArrayList) request.getSession().getAttribute("cart");

            boolean exist = false;
            int counter = 0;

            for (CartItem c : cartItems) {
                if (c.getId() == Integer.parseInt(id) && c.getSize() == sizeID) {
                    exist = true;
                    break;
                }
                counter++;
            }

            if (exist) {
                cartItems.get(counter).setQty(qty);
            } else {
                newItem = new CartItem(Integer.parseInt(id), size + product.getName(), qty, sizeID, price, product.getDescription());
                cartItems.add(newItem);
            }
            obj.put("success", new Boolean(true));

        } catch (Exception ex) {
            request.getSession().setAttribute("error", ex.getMessage());
            obj.put("redirect", "/order");
            obj.put("success", new Boolean(false));

        } finally {
            out.print(obj);
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
